WP Super Cache With Rackspace Cloud Files CDN guide is an update due to change of technology by using Open Cloud. Old one was Configuring WP Super Cache With Origin Pull or Origin Push CDN. One visitor commented recently in one of the articles on Page Speed Optimization that, he can not believe that his website is loading so fast just by following the words. So the things are actually working. Thats too, without the need of any Page Specialist’s fees.